Question

2. A body moving with initial velocity of 5 m/s accelerates at 2 m/s. Find its velocity after10 seconds.

Answer 1

U=5m/s
a=2m/s^2
t=10s
v=u + at
=5+2*10
=5+20
=25m/s ans..

Answer 2

The body accelerate 2m/s2 every second
hence after 10 S increase in velocity is

$2 \times 10$
=20m/s
hence final velocity is 5m/s+20m/s= 25m/s